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Finding the Fourth Proportional to 504,662.54, 696,410.88 and 289,651.28

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Solution

The fourth proportional to 504,662.54, 696,410.88 and 289,651.28 is: 399,705.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,662.54 : 696,410.88 = 289,651.28 : x
  2. Step 2: Convert to fraction form
    504,662.54/696,410.88 = 289,651.28/x
  3. Step 3: Cross multiply
    504,662.54x = 696,410.88 × 289,651.28
  4. Step 4: Simplify right side
    504,662.54x = 201,716,302,797.93
  5. Step 5: Solve for x
    x = 201,716,302,797.93/504,662.54
  6. Step 6: Final answer
    x = 399,705.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.